/*
 *
 * (c) Copyright Ascensio System Limited 2010-2018
 *
 * This program is freeware. You can redistribute it and/or modify it under the terms of the GNU 
 * General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html). 
 * In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that 
 * Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
 *
 * THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
 * FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
 *
 * You can contact Ascensio System SIA by email at sales@onlyoffice.com
 *
 * The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display 
 * Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
 *
 * Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains 
 * relevant author attributions when distributing the software. If the display of the logo in its graphic 
 * form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE" 
 * in every copy of the program you distribute. 
 * Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
 *
*/


using ASC.Core.Users;
using ASC.Xmpp.Core.protocol;
using ASC.Xmpp.Core.protocol.client;
using ASC.Xmpp.Server;
using ASC.Xmpp.Server.Storage.Interface;
using ASC.Xmpp.Server.Users;
using System.Collections.Generic;

namespace ASC.Xmpp.Host
{
	class ASCUserStore : IUserStore
	{
		#region IUserStore Members

		public ICollection<User> GetUsers(string domain)
		{
			ASCContext.SetCurrentTenant(domain);
			var users = new List<User>();
			foreach (var ui in ASCContext.UserManager.GetUsers())
			{
				var u = ToUser(ui, domain);
				if (u != null) users.Add(u);
			}
			return users;
		}

		public User GetUser(Jid jid)
		{
			ASCContext.SetCurrentTenant(jid.Server);
			var u = ASCContext.UserManager.GetUserByUserName(jid.User);
			if (Constants.LostUser.Equals(u) || u.Status == EmployeeStatus.Terminated) return null;
			return ToUser(u, jid.Server);
		}

		public void SaveUser(User user)
		{
			throw new JabberException(ErrorCode.Forbidden);
		}

		public void RemoveUser(Jid jid)
		{
			throw new JabberException(ErrorCode.Forbidden);
		}

		#endregion

		private User ToUser(UserInfo userInfo, string domain)
		{
			try
			{
				if (string.IsNullOrEmpty(userInfo.UserName)) return null;
				return new User(
					new Jid(userInfo.UserName.ToLowerInvariant() + "@" + domain.ToLowerInvariant()),
					ASCContext.Authentication.GetUserPasswordHash(userInfo.ID),
					ASCContext.UserManager.IsUserInGroup(userInfo.ID, Constants.GroupAdmin.ID),
                    userInfo.Sid
				);
			}
			catch { }
			return null;
		}
	}
}